Patents by Inventor Yih-Shen Chen

Yih-Shen Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240214852
    Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus is a UE. The UE receives, from a base station, a measurement configuration for measuring cross-link interference (CLI) in a subband full-duplexing (SBFD) slot and a reporting configuration for reporting the CLI. The UE performs measurements of the CLI on measurement resources indicated by the measurement configuration. The UE reports an indication of the measured CLI to the base station according to the reporting configuration.
    Type: Application
    Filed: December 19, 2023
    Publication date: June 27, 2024
    Inventors: Rama Kiran, Chandrasekaran Mohandoss, Jinesh Parameshwaran Nair, Chien-Hua Chen, Yih-Shen Chen
  • Publication number: 20240178967
    Abstract: Apparatus and methods are provided downlink and uplink CSI and power control for subband full duplex (SBFD) system. In one novel aspect, two CSI-RS configurations are configured for DL CSI, one for the DL-only slots and one for the SBFD slots. In one embodiment, the UE performs channel estimation individually using the CSI-RS configured for the DL-only slots and the SBFD slots. In another embodiment, the CSI-RS signals are periodic or aperiodic. The periodicity of CSI-RS for SBFD slots and DL-only slots are different. In one embodiment, the UE receives a first SRS configuration for UL-only slots and a second SRS configuration for the SBFD slots, transmits the SRS signals on UL-only slots and SBFD slots based on the first SRS configuration and the second SRS configuration. In another novel aspect, the UE receives two different sets of power control parameters for UL-only slots and the SBFD slots.
    Type: Application
    Filed: November 13, 2023
    Publication date: May 30, 2024
    Inventors: Chandrasekaran Mohandoss, Chien-Hua Chen, Yih-Shen Chen
  • Publication number: 20240147286
    Abstract: Apparatus and methods are provided for UE-assisted tethering report. In one novel aspect, UE-assisted tethering report is generated with UE-assisted procedure based on latency measurement configuration. In one embodiment, the UE-assisted tethering report includes one or more elements comprising one bit to inform the activation of tethering mode, latency of packet transmission, and other side-information related to tethering path. In one embodiment, the UE-assisted procedure is inserting a measurement timestamp or recording timing of a predefined transport block (TB) of the packet. In another novel aspect, the UE performs a jitter measurement for an extended reality (XR) traffic, sends a UE-assisted information report for an end-to-end path of the XR traffic based on the jitter measurements, wherein the UE-assisted information includes one or more elements comprising jitter information and burst arrival time.
    Type: Application
    Filed: October 23, 2023
    Publication date: May 2, 2024
    Inventors: JING-WEI CHEN, Tao Chen, Yih-Shen Chen, Ming-Yuan Cheng
  • Patent number: 11910257
    Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
    Type: Grant
    Filed: September 7, 2022
    Date of Patent: February 20, 2024
    Inventors: Din-Hwa Huang, Hsuan-Li Lin, Tsang-Wei Yu, Yih-Shen Chen, Chiao Yao Chuang
  • Publication number: 20230309145
    Abstract: A method for performing sidelink transmission over an unlicensed band is provided. The method includes performing a first-type listen-before-talk (LBT) process on the unlicensed band to obtain a channel occupancy time (COT) for the sidelink transmission. The first-type LBT process includes a random backoff process. Duration of the random backoff process is determined by a randomly generated LBT counter. The method further includes determining, based on a result from a sensing operation performed on the unlicensed band within a sensing window, a plurality of candidate sidelink resources on the unlicensed band within a sidelink resource selection window. The method also includes selecting, based on a completion time point of the first-type LBT process, a sidelink resource from the plurality of candidate sidelink resources. The method also includes performing the sidelink transmission within the obtained COT on the selected sidelink resource.
    Type: Application
    Filed: March 9, 2023
    Publication date: September 28, 2023
    Applicant: MEDIATEK INC.
    Inventors: Jing-Wei CHEN, Tao CHEN, Lung-Sheng TSAI, Jun-Qiang CHENG, Yih-Shen CHEN
  • Publication number: 20230300886
    Abstract: A method can include determining candidate sidelink resources by a user equipment (UE) for sidelink transmission on an unlicensed band from a sidelink resource selection window based on results of a sensing operation on the unlicensed band during a sidelink sensing window, selecting a sidelink resource from the candidate sidelink resources, performing a listen-before-talk (LBT) process on the unlicensed band to obtain a channel occupancy time (COT), and performing a sidelink transmission within the COT using the first sidelink resource. The selection of the sidelink resource can be based on an LBT time that is a predicted duration of a random backoff process of the first LBT process. Also, the first sidelink resource can be selected from the candidate sidelink resources without randomization.
    Type: Application
    Filed: March 8, 2023
    Publication date: September 21, 2023
    Applicant: MEDIATEK INC.
    Inventors: Jing-Wei CHEN, Tao CHEN, Lung-Sheng TSAI, Jun-Qiang CHENG, Yih-Shen CHEN
  • Publication number: 20230300885
    Abstract: A method can include determining candidate sidelink resources by a user equipment (UE) for sidelink transmission on an unlicensed band from a sidelink resource selection window based on results of a sensing operation on the unlicensed band during a sidelink sensing window, selecting a sidelink resource from the candidate sidelink resources, performing a listen-before-talk (LBT) process on the unlicensed band to obtain a channel occupancy time (COT), and performing a sidelink transmission within the COT using the first sidelink resource. The selection of the sidelink resource can be based on an LBT time that is a predicted duration of a random backoff process of the first LBT process. Also, the first sidelink resource can be selected from the candidate sidelink resources without randomization.
    Type: Application
    Filed: March 8, 2023
    Publication date: September 21, 2023
    Applicant: MEDIATEK INC.
    Inventors: Jing-Wei CHEN, Tao CHEN, Lung-Sheng TSAI, Jun-Qiang CHENG, Yih-Shen CHEN
  • Publication number: 20230095823
    Abstract: A method of configuring a set of active cells among neighboring cells to reduce latency and interruption for inter-cell mobility is proposed. The set of active cells is an active set of cells among which UE can do fast cell switching. The set of active cells is configured by the network based on UE measurement report or network deployment information. UE maintains the configuration and can perform pre-synchronization to the configured active cells in downlink (DL) only or in both DL and uplink (UL). UE maintains the DL/UL synchronization with the active cells, and applies configuration once UE is indicated to switch to an active cell as the target cell. Because UE maintains the configuration and DL/UL timing of the target cell before receiving the cell-switch command, the mobility latency and interruption time for inter-cell mobility is reduced.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 30, 2023
    Inventors: LI-CHUAN TSENG, Chia-Hao Yu, Kuan-Hung Chou, Chia-Chun Hsu, Yih-Shen Chen
  • Publication number: 20230007551
    Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
    Type: Application
    Filed: September 7, 2022
    Publication date: January 5, 2023
    Inventors: Din-Hwa Huang, Hsuan-Li Lin, Tsang-Wei Yu, Yih-Shen Chen, Chiao Yao Chuang
  • Patent number: 11470522
    Abstract: Apparatus and methods are provided for RRM measurement in the NR network. In one novel aspect, the RRM measurement is configured with one measurement gap for SS block and CSI-RS. In one embodiment, an extended MGL (eMGL) is configured such that the SS block and CSI-RS is measurement within one measurement gap. In another embodiment, the shorter MGL (sMGL) that is shorter than the standard MGL is configured. In another novel aspect, the CSI-RS is allocated adjacent to the SS blocks such that one measurement gap is configured for both the SS block and CSI-RS measurement. In another novel aspect, the CSI-RS measurement is conditionally configured. In yet another novel aspect, the UE decodes the time index of the SS block conditionally.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: October 11, 2022
    Assignee: MEDIATEK INC.
    Inventors: Din-Hwa Huang, Hsuan-Li Lin, Tsang-Wei Yu, Yih-Shen Chen, Chiao Yao Chuang
  • Patent number: 11259229
    Abstract: Aspects of the disclosure provide an electronic device. The electronic device can include transceiver circuitry and processing circuitry. The transceiver circuitry can be configured to receive signals from wireless service provider networks. The processing circuitry can be configured to detect, from the signals, a high speed rail (HSR) signature of one of the wireless service provider networks. The HSR signature can indicate that the one of the wireless service provider networks is a first network for a high speed rail usage. The processing circuitry can also be configured to determine a mobility of the electronic device based on the signals in a time duration. Further, the processing circuitry can be configured to selectively camp on a first cell of the first network based on the mobility of the electronic device.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: February 22, 2022
    Assignee: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Jianwei Zhang, Yen-Chen Chen, Yuanyuan Zhang, Yih-Shen Chen, Chi-Yuan Peng
  • Publication number: 20210345334
    Abstract: Various solutions for data transmission over multiple uplink carrier with respect to user equipment (UE) in mobile communications are described. A UE may establish a connection over a downlink component carrier and a first uplink component carrier with a network apparatus. The UE may further establish a connection over a second uplink component carrier with the network apparatus. The UE may transmit uplink data to the network apparatus via at least one of the first uplink component carrier and the second uplink component carrier. The UE may also assign the first uplink component carrier as a primary carrier and assigning the second uplink component carrier as a supplementary carrier. The UE may further switch the primary carrier from the first uplink component carrier to the second uplink component carrier.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Inventors: Yih-Shen Chen, Shun-An Yang, Chih Hsiu Lin, Guan-Yu Lin
  • Publication number: 20210160753
    Abstract: Aspects of the disclosure provide an electronic device. The electronic device can include transceiver circuitry and processing circuitry. The transceiver circuitry can be configured to receive signals from wireless service provider networks. The processing circuitry can be configured to detect, from the signals, a high speed rail (HSR) signature of one of the wireless service provider networks. The HSR signature can indicate that the one of the wireless service provider networks is a first network for a high speed rail usage. The processing circuitry can also be configured to determine a mobility of the electronic device based on the signals in a time duration. Further, the processing circuitry can be configured to selectively camp on a first cell of the first network based on the mobility of the electronic device.
    Type: Application
    Filed: May 15, 2018
    Publication date: May 27, 2021
    Applicant: MEDIATEK SINGAPORE PTE. LTD.
    Inventors: Jianwei ZHANG, Yen-Chen CHEN, Yuanyuan ZHANG, Yih-Shen CHEN, Chi-Yuan PENG
  • Patent number: 10986693
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller receives a measurement configuration and a Discontinuous Reception (DRX) configuration from the service network via the wireless transceiver, extends a measurement period indicated by the measurement configuration, and performs a cell measurement via the wireless transceiver in the extended measurement period.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: April 20, 2021
    Assignee: MEDIATEK INC.
    Inventors: Din-Hwa Huang, Wenze Qu, Yih-Shen Chen, Tsang-Wei Yu
  • Patent number: 10932147
    Abstract: A method can include receiving measurement configurations for measuring serving/neighboring cells at a user equipment (UE) in a wireless communication system. The measurement configurations can indicate multiple measurement objects (MOs) each with a SSB measurement timing configuration (SMTC) specifying a sequence of SMTC window durations (i.e. SMTC occasions), and a sequence of gap occasions. The MOs can be measured within the SMTC occasions that overlap the gap occasions. The method can further include determining a carrier-specific scaling factor for a target MO in the multiple MOs based on candidate MOs to be measured in each of the gap occasions.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: February 23, 2021
    Assignee: MEDIATEK INC.
    Inventors: Dinhwa Huang, Yih-Shen Chen, Tsang-Wei Yu
  • Patent number: 10912144
    Abstract: A method to speed up uplink data access during a radio resource control (RRC) reconfiguration procedure is proposed. UE first sends an RRC request, and in response receives an RRC reconfiguration message from BS. UE then decodes the RRC reconfiguration message and performs reconfiguration. UE also waits for UL grant for transmitting RRC reconfiguration complete with UL data if available. In one embodiment, BS provides the UL grant in a common search space while UE is performing the reconfiguration, and UE does not need to wait the UL grant until after the reconfiguration is done. In other words, the reconfiguration and the UL grant occurs in parallel, which reduces access delay for UL data. In an alternative embodiment, BS provides UL grant in RRC reconfiguration message, so that UE does not have to receive UL grant while performing the reconfiguration.
    Type: Grant
    Filed: May 8, 2019
    Date of Patent: February 2, 2021
    Assignee: MediaTek INC.
    Inventors: Yih-Shen Chen, Chun-Fan Tsai, Chia-Chun Hsu
  • Patent number: 10904821
    Abstract: A User Equipment (UE) including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a cell. The controller receives first barring information and second barring information from the cell via the wireless transceiver, and ignores the first barring information in response to the UE supporting network-based Cell-specific Reference Signal (CRS) interference mitigation. Also, the controller allows the UE to access the cell in response to the UE supporting network-based CRS interference mitigation and the second barring information indicating that the cell is not barred.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: January 26, 2021
    Assignee: MEDIATEK INC.
    Inventors: Yih-Shen Chen, Chun-Fan Tsai, Tsang-Wei Yu
  • Publication number: 20200204986
    Abstract: Various examples and schemes pertaining to uplink data compression (UDC) in mobile communications are described. A processor of an apparatus receives a Packet Data Convergence Protocol (PDCP) Session Data Unit (SDU) and performs uplink data compression (UDC) to compress a data portion of the PDCP SDU to generate a UDC packet. The processor also generates a message authentication code with integrity (MAC-I). The processor also ciphers at least a data portion of the UDC packet to provide a ciphered UDC packet. In case the PDCP SDU contains a Service Data Application Protocol (SDAP) header, the processor extracts the SDAP header from the PDCP SDU prior to performing the UDC, and the processor prepends the SDAP header to the ciphered UDC packet. The processor further constructs a PDCP Protocol Data Unit (PDU) by prepending a PDCP header to either the SDAP header or the ciphered UDC packet.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Inventors: Yung-Hsiang Liu, Yih-Shen Chen
  • Patent number: 10687179
    Abstract: A method of supporting group communication over LTE MBMS is provided. A UE first establishes a unicast bearer in a network for group communication. The UE belongs to a communication group having a communication group ID. The UE receives access information from the network for monitoring downlink (DL) multicast traffic of the DL group communication based on a multicast decision. The UE is then ready for monitoring a multicast Multimedia Broadcast Multicast Service (MBMS) bearer for receiving the DL multicast traffic. In one embodiment, The UE requests to switch the DL multicast traffic from the multicast MBMS bearer to the unicast bearer upon detecting that the UE is approaching an MBMS coverage boundary. In another embodiment, the UE transmits an indication of preferred target cells to the network before performing a handover and thereby maintaining multicast service continuity of the group communication.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: June 16, 2020
    Assignee: HFI Innovation INC.
    Inventors: Chia-Hao Yu, Chia-Chun Hsu, Yih-Shen Chen, Chien-Chun Huang-Fu, Yu-Syuan Jheng
  • Publication number: 20200178105
    Abstract: A method of MDT information logging and problem event reporting is provided. The method supports provisioning of reference events to enable correlation of system time and the problem occurrence. In one embodiment, a problem event report includes time information directly or indirectly related to a reference event. A method of handling battery condition is also provided. The method supports autonomously suspending or resuming OAM activities in MDT based on predefined battery condition. In one embodiment, a testable battery condition handling is designed for MDT logging.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 4, 2020
    Applicant: HFI Innovation Inc.
    Inventors: Per Johan Mikael Johansson, Yih-Shen Chen, Chia-Chun Hsu, Michael Roberts